Roof-mounted solar panels are part of the "micro-trigeneration system" that's designed to let the owners of this new four-bedroom, five-bath home in the Energy Corridor area to operate on or off the grid.

Roof-mounted solar panels are part of the "micro-trigeneration...

Empty nesters Steve and Brenda Norwood's new three-story house has four bedrooms, five bathrooms, three living areas, a home theater, wet bar and an elevator. But the most remarkable thing about it is outside in a metal case.

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